The answer is is $22.50
This problem can be solved with proportions/ratios and cross multiplication
To set it up, you can write out the ratios like this
[tex] \frac{7.50}{x} = \frac{1}{3} [/tex]
where x=original price
or you can first write it like this, following the wording of the sentence
[tex]$7.50= (\frac{1}{3}) original price[/tex]
and then divide to get
[tex] \frac{7.50}{x} = \frac{1}{3} [/tex]
Now cross multiply (multiply numbers diagonal from each other together)
($7.50)(3)=(1)(x)
$22.50=x
The answer is is $22.50
